C.  Ferretti, Vozzi, G., Falconi, M., Orciani, M., Gesi, M., Di Primio, R., and Mattioli-Belmonte, M., ?Role of IGF1 and IGF1/VEGF on Human Mesenchymal Stromal Cells in Bone Healing: Two Sources and Two Fates?, Tissue Engineering Part A, 2014.